..26; 95% CI, 1.27-4.02, P=0.006 for those with more than 10 teeth lost). The number of teeth lost is correlated with cognitive impairment among community-dwelling adults aged 50 and above without any medical history of stroke or dementia. ..

..Although re-trial of memantine improves these symptoms, more additional drugs may be required to achieve previous status. Therefore, abrupt cessation of memantine should be prudent and require cautious follow up...